Shuttle box for looms



P 2, I c. H. DRAPER 7 35 SHUTTLE BOX FOR LOO-S I Filed Dec. 13. 1929 I. mm 0 m W "H n .M C

' byMMzM Patented Sept. 2, 1930 UNITED STATES PATENT OFFICE- CLARE H. DRAPER, OE HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER CORPORA- TION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE SHUTTLE BOX FOR LOOMS Application filed December 13, 1929. Serial No. 413,694.

This invention relates to looms and especially to devices applied to looms to protect the running filling. It has for its object to provide a device which supports the end of the filling leading from a bobbin after transfor in a. filling replenishing loom to a fixed point on the filling replenishing mechanism and thus holds it out of the path of the picker stick during the following pick.

A further object of the invention is to provide a means to prevent dethreading of the shuttle due to ballooning or looping of the thread when the shuttle is boxed.

A further object of the invention is to prol5 vide such a protective device which is simple,

effective and durable.

A further object of the invention is to provide a device of this character which may be readily applied to existing looms.

These and other objects and features of the invention will more fully appear from the accompanying description and drawings and willbe particularly pointed out in the claims.

In the drawings:

Fig. 1 is a front elevation of a portion of a loom having a preferred embodiment of the invention applied thereto.

Fig. 2 is a plan view of a shuttle showing the proper position of the plate relatively to the shuttle box.

Fig. 3 is a cross section on line 8-8, Fig. 2.

When a loom is provided with filling replenishing mechanism after transfer has 7 taken place and the bobbin is in the shuttle, a filling end extends from this bobbin to a fixed point or filling end holder on the battery or magazine containing the fresh bobbins. This filling end not infrequently sags or extends downward sufiiciently to come into the path of the picker stick and be caught and broken thereby when the shuttle is picked out from the box.

But whether a loom is or is not provided with filling replenishing mechanism, the filling may work or be thrown off from the tip of the bobbin as the shuttle is checked upon its entry into the shuttle box. This loop being thrown outward or toward the side of 0 theloom not infrequently is thrown beyond the end of the usual horn on the shuttle and upon the reverse pick passes down through the threading slot thus dethreading the shuttle.

Both of these difliculties are increased when the yarn is of a like character or liable to twist or kink and also by the presence of air currents or other causes.

The present invention overcomes both of these difficulties by means of a plate mounted over the outer end of the shuttle box which, in the case of the filling replenishing loom, acts to support the filling extending from the end holder of the magazine to the bobbin in the shuttle after replenishing operation so that it will not be caught by the picker stick, and which acts in the case of any loom to support any loop thrown out from the shuttle upon its entry into the box so that this loop cannot be drawn into the threading slot and thus dethread the shuttle.

In order to illustrate the invention in its preferred form, it is shown in connection with a loom embodying a well-known form of filling replenishing mechanism. But only those portions of the loom directly concerned with the presentinvention are illustrated as further details are well known and familiar to thoseskilled in the art.

The magazine or battery 1 is of a usual type and adaptedto contain a series of full bobbins, only one of which is shown. The end 2 of the filling 3 on the bobbin 4, which is shown as having just beentransferred into the shuttle after a filling replenishing operation extends over the usual disk 5 of the battery and is secured to the usual filling end holder 6. The other bobbins, not shown, are similarly installed in the battery. The lay 8 reciprocates below the battery support 7 and carries the usual shuttle box 9 thereon. The picker stick l0 swings longitudinally of the lay within the shuttle box 9 to pick the shuttle 11 out of the box 9. The plate of this invention is mounted upon and extends over the outer end of the shuttlebox and is preferably adjustably and removably secured thereto.

The front wall 12 of the shuttle box is preferably of special construction to permit the plate 13 to be secured thereto. Inorder to 100 provide a firm support for the plate 13 the wall 12 has formed'thereon an overhanging boss 14 having a flat upper face 15 which may be horizontal or preferably at a slight downwardly inclined angle. The plate 13 is so shaped that its overhanging portion 16 is horizontal. Any convenient method may be employed to secure the plate 13 to the wall 12, As herein shown the plateis secured thereto by means of bolts 17 which pass through apertures in the plate and slots 18v in the boss 14. The slots 18 permit adjustment of the plate forward and rearward, While the bolts secure the plate in fixed position when the proper adjustment thereof has been made. The plate 13 may extend inward along thetop of the shuttle box to a point which will permit the bobbin to clear the inner edge thereofwhen inserted in the shuttle. The plate may, however, be mounted in the tending across the top of the shuttle box at its outer end acting to support the end of the filling, extending from the shuttle immediately following a filling replenishing operdesired position above the outer. end of the shuttle box in'any suitable manner such as by securing it to the rear wall of the shuttle box or to both front and rear walls depending upon the construction of the loom.

When transfer orfilling replenishment has taken place, the filling end extends from the bobbinin the shuttle to the holder'6 on the battery as above pointed out. Ina loom not employing the principles of this invention the run of'filling between these two points may extend into the path of the picker stick and Y be engaged thereby'during itscpicking motion. Such condition wil-lvcause trouble and result in a poor quality of product. By means of the plate 13 this run of filling is supported out of the path of the picker stick,

' thus avoiding all trouble from this source.

Fig. 2 illustrates the manner in which dethreading of the shuttle is prevented; H at the end of a pick,:the filling works off the tip of the bobbin, a loop will be formed and may be thrown outward beyond the usual horn and threading slot of the shuttle and then sub-- sequently be drawn intothe slot, thus unthreading the shuttle; The plate 13, how ever, intercepts such a loop, and prevents any possibility of the .filli'ngbein'g thrown outward to such an extent that the shuttle will be dethreaded. I

Having thus described the inventiom what desired to be secured is claimed asnew and by Letters Patent, is

' 1. A loom comprising a lay, a shuttle box *1 onthe lay'to receive the shuttle, and a plate secured to'the'lay and extending across the top of the outer end of theshuttle box acting to support a loop of filling thrown out of the shuttle when picked into the box and thus "shuttlewhen prevent dethreading of the picked out of the box A i 2; A loom comprising a lay, ashuttle box on the lay to receive theshuttle, a-picker stick reciprocable therein, a'filling replenishing mechanism and a plate secured to and ex 

